Im doing a Linear wipe at an angle on a comp in a comp. I want to add a Drop Shadow to create a border just on the wipe edge. As usual when drop shadows is near edge of layer it doesnt go all the way. Favourite solution: add Grow Bounds before Drop Shadow effect. But Grow Bounds only works on layers. Other good ways of adding a border just to the transition edge is gratefully accepted. (CS5 btw)

Hi Mylenium. It worked, I misunderstod you the first time. I put the original footage in a Pre-Precomp that i extended the size of but i forgot to add a solid with the new size behind so that i could get correct alpha for the dropshadow. Fixed that and now its working.

Since i need to do this hundreds of times for the project is there really no easier way? Can i automate this somehow?